Texas A&M football players who will battle for their starting spot in spring: DT Albert Regis
This one is a bit more of a projection, and given the versatility of a lot of guys up front, it may not end up being accurate. But in years past, the rotation along the interior of the defensive line has featured Regis maybe the most heavily out of any player who remains with Texas A&M football. Shemar Turner has shown an ability to play inside, but he did that to a lesser degree under Durkin.
Regis was slotted well behind two guys who have now departed the program (although in very different ways): Walter Nolen and McKinnley Jackson. Even so, he was a big contributor, often rotating in with the second unit alongside Isaiah Raikes and LT Overton (who have also both left via the portal).
So, why shouldn't the redshirt junior from Port Arthur be penciled in to start, given his level of experience? To be clear, I think it could happen. But the inevitable rise of the uber-talented DJ Hicks, portended by his performance in the bowl game, makes me wary that Regis will be able to stake out a starting spot. The same reasoning goes for Gabriel Brownlow-Dindy.
You also have the two Shemars, both of whom can rotate inside if needed (though I doubt either would start there). I don't doubt that, whatever happens, Regis will be a huge part of the rotation. But despite his wealth of experience, he will have a fight on his hands when it's time to iron out the depth chart.